1 #ifndef _UAPI_INET_DIAG_H_ 2 #define _UAPI_INET_DIAG_H_ 3 4 #include <linux/types.h> 5 6 /* Just some random number */ 7 #define TCPDIAG_GETSOCK 18 8 #define DCCPDIAG_GETSOCK 19 9 10 #define INET_DIAG_GETSOCK_MAX 24 11 12 /* Socket identity */ 13 struct inet_diag_sockid { 14 __be16 idiag_sport; 15 __be16 idiag_dport; 16 __be32 idiag_src[4]; 17 __be32 idiag_dst[4]; 18 __u32 idiag_if; 19 __u32 idiag_cookie[2]; 20 #define INET_DIAG_NOCOOKIE (~0U) 21 }; 22 23 /* Request structure */ 24 25 struct inet_diag_req { 26 __u8 idiag_family; /* Family of addresses. */ 27 __u8 idiag_src_len; 28 __u8 idiag_dst_len; 29 __u8 idiag_ext; /* Query extended information */ 30 31 struct inet_diag_sockid id; 32 33 __u32 idiag_states; /* States to dump */ 34 __u32 idiag_dbs; /* Tables to dump (NI) */ 35 }; 36 37 struct inet_diag_req_v2 { 38 __u8 sdiag_family; 39 __u8 sdiag_protocol; 40 __u8 idiag_ext; 41 __u8 pad; 42 __u32 idiag_states; 43 struct inet_diag_sockid id; 44 }; 45 46 /* 47 * SOCK_RAW sockets require the underlied protocol to be 48 * additionally specified so we can use @pad member for 49 * this, but we can't rename it because userspace programs 50 * still may depend on this name. Instead lets use another 51 * structure definition as an alias for struct 52 * @inet_diag_req_v2. 53 */ 54 struct inet_diag_req_raw { 55 __u8 sdiag_family; 56 __u8 sdiag_protocol; 57 __u8 idiag_ext; 58 __u8 sdiag_raw_protocol; 59 __u32 idiag_states; 60 struct inet_diag_sockid id; 61 }; 62 63 enum { 64 INET_DIAG_REQ_NONE, 65 INET_DIAG_REQ_BYTECODE, 66 }; 67 68 #define INET_DIAG_REQ_MAX INET_DIAG_REQ_BYTECODE 69 70 /* Bytecode is sequence of 4 byte commands followed by variable arguments. 71 * All the commands identified by "code" are conditional jumps forward: 72 * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be 73 * length of the command and its arguments. 74 */ 75 76 struct inet_diag_bc_op { 77 unsigned char code; 78 unsigned char yes; 79 unsigned short no; 80 }; 81 82 enum { 83 INET_DIAG_BC_NOP, 84 INET_DIAG_BC_JMP, 85 INET_DIAG_BC_S_GE, 86 INET_DIAG_BC_S_LE, 87 INET_DIAG_BC_D_GE, 88 INET_DIAG_BC_D_LE, 89 INET_DIAG_BC_AUTO, 90 INET_DIAG_BC_S_COND, 91 INET_DIAG_BC_D_COND, 92 INET_DIAG_BC_DEV_COND, /* u32 ifindex */ 93 INET_DIAG_BC_MARK_COND, 94 }; 95 96 struct inet_diag_hostcond { 97 __u8 family; 98 __u8 prefix_len; 99 int port; 100 __be32 addr[0]; 101 }; 102 103 struct inet_diag_markcond { 104 __u32 mark; 105 __u32 mask; 106 }; 107 108 /* Base info structure. It contains socket identity (addrs/ports/cookie) 109 * and, alas, the information shown by netstat. */ 110 struct inet_diag_msg { 111 __u8 idiag_family; 112 __u8 idiag_state; 113 __u8 idiag_timer; 114 __u8 idiag_retrans; 115 116 struct inet_diag_sockid id; 117 118 __u32 idiag_expires; 119 __u32 idiag_rqueue; 120 __u32 idiag_wqueue; 121 __u32 idiag_uid; 122 __u32 idiag_inode; 123 }; 124 125 /* Extensions */ 126 127 enum { 128 INET_DIAG_NONE, 129 INET_DIAG_MEMINFO, 130 INET_DIAG_INFO, 131 INET_DIAG_VEGASINFO, 132 INET_DIAG_CONG, 133 INET_DIAG_TOS, 134 INET_DIAG_TCLASS, 135 INET_DIAG_SKMEMINFO, 136 INET_DIAG_SHUTDOWN, 137 INET_DIAG_DCTCPINFO, 138 INET_DIAG_PROTOCOL, /* response attribute only */ 139 INET_DIAG_SKV6ONLY, 140 INET_DIAG_LOCALS, 141 INET_DIAG_PEERS, 142 INET_DIAG_PAD, 143 INET_DIAG_MARK, 144 INET_DIAG_BBRINFO, 145 __INET_DIAG_MAX, 146 }; 147 148 #define INET_DIAG_MAX (__INET_DIAG_MAX - 1) 149 150 /* INET_DIAG_MEM */ 151 152 struct inet_diag_meminfo { 153 __u32 idiag_rmem; 154 __u32 idiag_wmem; 155 __u32 idiag_fmem; 156 __u32 idiag_tmem; 157 }; 158 159 /* INET_DIAG_VEGASINFO */ 160 161 struct tcpvegas_info { 162 __u32 tcpv_enabled; 163 __u32 tcpv_rttcnt; 164 __u32 tcpv_rtt; 165 __u32 tcpv_minrtt; 166 }; 167 168 /* INET_DIAG_DCTCPINFO */ 169 170 struct tcp_dctcp_info { 171 __u16 dctcp_enabled; 172 __u16 dctcp_ce_state; 173 __u32 dctcp_alpha; 174 __u32 dctcp_ab_ecn; 175 __u32 dctcp_ab_tot; 176 }; 177 178 /* INET_DIAG_BBRINFO */ 179 180 struct tcp_bbr_info { 181 /* u64 bw: max-filtered BW (app throughput) estimate in Byte per sec: */ 182 __u32 bbr_bw_lo; /* lower 32 bits of bw */ 183 __u32 bbr_bw_hi; /* upper 32 bits of bw */ 184 __u32 bbr_min_rtt; /* min-filtered RTT in uSec */ 185 __u32 bbr_pacing_gain; /* pacing gain shifted left 8 bits */ 186 __u32 bbr_cwnd_gain; /* cwnd gain shifted left 8 bits */ 187 }; 188 189 union tcp_cc_info { 190 struct tcpvegas_info vegas; 191 struct tcp_dctcp_info dctcp; 192 struct tcp_bbr_info bbr; 193 }; 194 #endif /* _UAPI_INET_DIAG_H_ */ 195